{
  "bibcode": "2012GCN.13461....1O",
  "body": "S. R. Oates (MSSL-UCL) and M. J. Page (MSSL-UCL)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 120712A\n95 s after the BAT trigger (Page et al., GCN Circ. 13454).\nA source consistent with the XRT position (Osborne et al., GCN Circ. 13456) \nand the optical position reported by GROND (Elliott et al., GCN Circ. 13457) \nis detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n  RA  (J2000) =  11:18:21.25 = 169.58854 (deg.)\n  Dec (J2000) = -20:02:01.7  = -20.03380 (deg.)\nwith an estimated uncertainty of 0.50 arc sec. (radius, 90% confidence).\n\nPreliminary detections and 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: \n\nFilter         T_start(s)   T_stop(s)      Exp(s)           Mag\n\nwhite (FC)         95           245          147        16.95 +/- 0.03\nwhite              861         1010          150        18.93 +/- 0.09\nv                  637          657           19        16.79 +/- 0.15\nb                  563        18691         1160        >21.8\nu                  308        35517         2569        >22.1\nw1                 686        35216         3108        >22.0\nm2                4818        41481         3296        >22.1\nw2                 613        40167         2931        >22.1\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.04 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 13461,
  "createdOn": 1342181747000,
  "email": "sro@mssl.ucl.ac.uk",
  "subject": "GRB 120712A: Swift/UVOT Detection",
  "submitter": "Samantha Oates at MSSL  <sro@mssl.ucl.ac.uk>",
  "eventId": "GRB 120712A"
}